Pressure-Induced Superconductivity in the Quasi-One-Dimensional Organic Conductor (TMTTF)2AsF6

Miho Itoi; Mika Kano; Nobuyuki Kurita; Masato Hedo; Yoshiya Uwatoko; Toshikazu Nakamura

doi:10.1143/jpsj.76.053703

Pressure-Induced Superconductivity in the Quasi-One-Dimensional Organic Conductor (TMTTF)₂AsF₆

Miho Itoi, Mika Kano, Nobuyuki Kurita, Masato Hedo, Yoshiya Uwatoko, Toshikazu Nakamura

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Keywords: Quasi one-dimension, organic conductor, superconductivity, Tomonaga–Luttinger liquid

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2007 Volume 76 Issue 5 Pages 053703

DOI https://doi.org/10.1143/jpsj.76.053703

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Abstract

We have investigated the transport properties of the quasi-one-dimensional (1-D) organic conductor (TMTTF)₂AsF₆ at high pressures. A superconducting transition was observed, for the first time, at 2.38 K from a resistance measurement at 4.5 GPa. The presence of zero resistance was also confirmed at ∼2.3 K in the pressure range of 4.65≤P≤5 GPa. We discuss the electron correlation in (TMTTF)₂AsF₆ based on its pressure–temperature phase diagram.

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